Metallium's (ASX:MTM) sponsored American Depositary Receipts (ADR) program started trading on the OTCQX market on Monday, according to a same-day filing with the Australian bourse.
Bank of New York Mellon acts as the nominated depositary bank for the program, the filing said.
The company is preparing for a potential secondary Level 2 Nasdaq listing, aiming for completion by the third quarter of the year, per the filing.
Shares fell 1% in midday trade on Monday.